The recovery ship Horizon Arctic has now delivered all the debris it was able to collect from the shattered remains of the Titan submersible on the Atlantic seafloor.
As shown by the amount of material that came ashore, the ship's deep-sea robot managed to bring up significant components. These may yet help investigators get to the root cause of the Titan's catastrophic implosion 11 days ago that killed five people.
Quayside workers in St John's in Newfoundland attempted to cover the fragments with sheeting, but some pieces were still clearly identifiable.
One of the most obvious was the front titanium end cap from the cylinder-shaped, carbon-fibre sub.
Looking rather like a metal doughnut, the hole in its middle is where the viewport window would have been.